br br Tuvan band Huun Huur Tu have always functioned perfectly well by themselves, so pairing them with electronic musician Carmen Rizzo was a daring experiment -- what could he bring to the party? Quite a lot, it appears. Although never overbearing, he uses instruments, synths, beats (and some strings and brass) to make the group even more shamanic and emotional, as on the utterly breathtaking "Orphaned Child," where the voices seem to be calling from the wilderness into the void. There's perhaps less of the throat singing that first grabbed Western audiences, but it's replaced by a beautiful, mournful lyricism (not completely; those overtones are very much in evidence on the closer, "Tuvan Prayer,"....